H. F. WICKHA.M 269 



Described from one specimen, with counterpart, found by my- 

 self on the Wilson Ranch, near Florissant, Colorado. The type is 

 in my collection. 



In comparison with the other Florissant fossil species, this would 

 come nearest to M. smithiana, which is of about the same size. 

 The present insect, however, has relatively a longer abdomen and 

 style, giving it a more slender appearance. The sculpture is an 

 extremely minute, close punctuation and the vestiture has left 

 imprints of close, fine hairs. 

 Mordellistena protogaea sp. nov. (Plate V, fig. 9.) 



Form only moderately slender. Head and prothorax fused by crush- 

 ing, the shape of each being hardly definable. However, it may be seen 

 that the head is broad and short, not much narrower than the prothorax 

 which is wider posteriorly. Sculpture of both these parts fine and quite 

 close, but readily definable under fairly high power, vestiture moderately 

 dense.and short. Elytra, seen from above, tapering posteriorly, apices 

 separately rounded, sculpture similar to that of the prothorax but a little 

 stronger, vestiture also much the same. Anal style short but well difTer- 

 entiated, apparently grooved above, the tip nearly pointed. Length, 

 over all, 3.8.5 mm.; to apex of elytra, S mm. 



Described from one specimen, with counterpart, preserved in 

 dorsal and ventral aspects. It was collected by myself on the 

 Wilson Ranch, near Florissant, Colorado. The type is in my col- 

 lection. 



Excepting the smaller size, shorter style and cHfferent pimc- 

 tuation, there is nothing definite upon which to separate this 

 insect from M. smithiana, but that species is much smoother. 

 The comparison of punctuation was made with a 1| inch objec- 

 tive and a 3x ocular. A hand lens will not bring it out well. 

 The types of both species are preserved in similar shale and are 

 in good condition as regards the surface characters. Both seem 

 to have been brownish or testaceous in life. 



TBAN8. AM. ENT. SOC. . XL. 



